143944 has 16 divisors (see below), whose sum is σ = 284400. Its totient is φ = 68112.

The previous prime is 143909. The next prime is 143947. The reversal of 143944 is 449341.

It is a happy number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (143947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322 + ... + 625.

It is an arithmetic number, because the mean of its divisors is an integer number (17775).

2¹⁴³⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

143944 is a deficient number, since it is larger than the sum of its proper divisors (140456).

143944 is a wasteful number, since it uses less digits than its factorization.

143944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 968 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 143944 is about 379.3995255664. The cubic root of 143944 is about 52.4080324885.

The spelling of 143944 in words is "one hundred forty-three thousand, nine hundred forty-four".